Papers by Keyword: Network Security

Abstract: With the development of network technology and network size, network security incidents occur more frequently. Exploring the reasons and processes that cause network security incidents can help us analyze the current network situation and formulate appropriate coping strategies. In order to find the causes we apply data farming in the filed of network security, a data farming platform based on simulation software NetLogo and data farming tool OldmcData was established in this paper. By planting data in the area of interest, data mining, visualization and such analytical methods can be applied to find out the reasons and processes behind in the incidents so as to take corresponding measure to improve the security of network.

Abstract: At present P2P is widely applied on the Internet. But it still has a safety hazard because of the special feature of dynamic and anonymity of P2P.This paper designs a model of P2P trust based on fuzzy degree of nodes' credit. It computes the fuzzy degree of nodes' credit according to the historic records and the theory of fuzzy mathematics, and the result is used as the basis of choice of P2P transaction. The fuzzy degree of nodes' credit will be increased and decreased according to the behavior of the node, establishing the dynamic and reasonable mechanism of rewards and punishment. Experimental results show that the model designed in this paper has a better performance in the parts of trade success rate and network load.

Abstract: Taking into account the safety of itself and high reliability and high availability features, we need to do to design more complete security monitoring system, which combines detection equipment, actuators and monitored objects together to form a whole, including the network directly to the monitored object inspection, monitoring and control process. This paper presents a systematic framework that through data collection, analysis, processing, rules, standards, violation, stop, and record all the process to achieve the protection and monitoring of local or remote computers all kinds of information, and then discuss the modules and systems different functions.

Abstract: Network security assessment is a complex multi-criteria problem including both quantitative and qualitative factors. In this paper, taken the computer network security evaluation index for a research object, the judgment matrix of index weight was improved based on the fuzzy theory, and a new weight determination approach was proposed to make up the shortcomings of traditional weight determination method and highlight the fuzziness of expert judgment. Meanwhile using fuzzy theory to establish fuzzy evaluation matrix, then combine analytic hierarchy process to set up a fuzzy AHP evaluation model of the computer network security. At the final stage, a security assessment of the system of an institution’s network was to implement to demonstrate the feasibility of the evaluation model.

Abstract: E-government is a prerequisite for economic and social informatization. Information required from the various forces of a country, among them, the government as a national composition and the flow of information center "nodes", play a responsibility in the process of social informatization and irreplaceable role. In this paper, the design and construction of e-government system are discussed in this paper. Elaborated the e-government system basic architecture, the paper analyzes the electronic government affairs system overall design.

Abstract: In recent years, with the rapid development of the era economy and ever-changing science and technology, today's era information gradually moving towards a diversified network communication. Sensor networks data aggregation mainly gradually reduce redundant transmission and reduce energy consumption to the maximum extent. Currently sensor network data aggregation scheme as an important form of information transmission, is widely used in all kinds of data transmission. This sink node comprehensively checks and compares data and also ensure its secure transmission of data. In the process of researching and analyzing a secure and transparent gathering sensor network program data, this paper firstly introduce the safety data convergence protocol and encryption data aggregation scheme, and then build the network model and the attacker model and elaborate sensors data convergence specific program and finally analyze sensor network data solutions security.

Abstract: In order to work on research on analysis the relationship of invasive alarm, establish a net-safe frame integrated technology of privacy processing. The mining algorithms of K- Frequent Patterns is improved in research on quantity of invasive alarm, a generalization measure method has been proposed which focus on effectiveness ，by improving the algorithms, bring out associative algorithms of frequent invasion sequence with privacy-processing integrated, privacy-processing of invasive alarm data has been achieved effectively. Experiment shows that the association rules which get from improved algorithms are available, and the improved algorithms have the ability to protect the sensitive information. A conclusion has been made from the results: After privacy-processing, the frequent invasion sequence algorithms have preferable validity, scalability and mining performance.

Abstract: Internet technology as the cutting-edge of the current information technology, it has penetrated into every aspect of human life, more and more government agencies, enterprises are using Internet to improve their office efficiency and to establish new business operation model, in order to improve its reaction ability in fierce competition. Internet has brought convenience for people to work, while the security problem of network also will follow. The internal network not only needs to ensure the security of their data, but also needs to exchange data with the external network, then by adopting network security isolation system which takes gatekeeper technology as its core technology, so that we can ensure that internal network and external network will have physical isolation at any time, meanwhile, according to business needs, it also has multiple forms of information and data’s exchanges.

Abstract: The main purpose of computer network security research is extract system data and factors related to the computer network security, and then establish a model which is analyze the security of computer network. Analyze the association rules and its related mining algorithm Apriori, through the application of the improved Apriori algorithm founded on pretreatment in computer network security teaching; explain the process of data mining and analysis of mining results, finally points out the future research direction. This model mainly analyzes the contents of three aspects as the requirements of computer network system security, degree of safety and threats to computer security, to check the security of the computer performance.

Abstract: This paper propose an idea of dynamic deploy and relevant algorithms. The first step of dynamic deployment is that it will forecast the security situation through grey forecast model. Then, the virtual honeypots will be changed by imitating the biology actions. Hence, the dynamic Honeynet has the ability of disguising according to the realtime intrusion. It improves the effect in confusing hackers and weakens the attack. The model and relevant algorithms are presented. The results of experiment show that dynamic deploy scheme better effect in deceiving hackers with lower cost compared to the static deploy scheme.